WESTLAKE CORPORATION WLK
COM · Common Stock · CUSIP 960413102 · ISIN US9604131022
American petrochemical company
- SectorMaterials
- IndustryIndustrial Organic Chemicals
- HeadquartersHouston, TX
- Founded1986
- Websitewestlake.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($3.0m this quarter). Holder counts are more reliable. Shares outstanding: 127.5m as of 2022-10-28, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $102.56. Options: 10 managers hold calls ($15.7m notional), 10 hold puts ($15.5m).
Trends to Q4 2022
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 321 |
| Q4 2022 | 343 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $21.2m | $18.0m | 0.85 |
| Q4 2022 | $15.7m | $15.5m | 0.99 |
Biggest buyers
| Orbis Allan Gray Ltd | New | +2.0m |
| BlackRock Inc. | Added | +1.4m |
| STATE STREET CORP | Added | +379.3k |
| Pacer Advisors, Inc. | Added | +342.2k |
| CITADEL ADVISORS LLC | Added | +324.5k |
| VICTORY CAPITAL MANAGEMENT INC | Added | +221.0k |
| Bank of New York Mellon Corp | Added | +168.0k |
| Invesco Ltd. | Added | +161.7k |
| Point72 Asset Management, L.P. | New | +152.7k |
| Appian Way Asset Management LP | New | +148.7k |
Biggest sellers
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Sold out | -654.9k |
| BANK OF AMERICA CORP /DE/ | Reduced | -468.8k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -429.5k |
| ACADIAN ASSET MANAGEMENT LLC | Reduced | -375.6k |
| JANUS HENDERSON GROUP PLC | Reduced | -371.7k |
| Verition Fund Management LLC | Reduced | -335.3k |
| FEDERATED HERMES, INC. | Reduced | -297.5k |
| MORGAN STANLEY | Reduced | -276.2k |
| MARSHALL WACE, LLP | Sold out | -253.4k |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Sold out | -147.0k |
Biggest calls
| Walleye Trading LLC | Added | $4.3m42.1k shares |
| CITADEL ADVISORS LLC | Reduced | $4.1m39.6k shares |
| Cubist Systematic Strategies, LLC | Reduced | $2.8m26.9k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $2.6m24.9k shares |
| WOLVERINE TRADING, LLC | New | $790.0k7.7k shares |
| JANE STREET GROUP, LLC | Added | $769.0k7.5k shares |
| SIMPLEX TRADING, LLC | Added | $348.0k3.4k shares |
| PEAK6 Investments LLC | Reduced | $51.3k500 shares |
| GROUP ONE TRADING LLC | Reduced | $20.5k200 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CITADEL ADVISORS LLC | Added | $4.6m44.7k shares |
| D. E. Shaw & Co., Inc. | Unchanged | $4.0m38.7k shares |
| SIMPLEX TRADING, LLC | Reduced | $2.7m26.2k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $1.4m13.7k shares |
| Cubist Systematic Strategies, LLC | Unchanged | $912.6k8.9k shares |
| PEAK6 Investments LLC | Reduced | $728.0k7.1k shares |
| JANE STREET GROUP, LLC | Reduced | $625.5k6.1k shares |
| Walleye Trading LLC | Reduced | $307.6k3.0k shares |
| WOLVERINE TRADING, LLC | New | $267.0k2.6k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Insider purchases and sales in Q4 2022
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q1 2021 | 0 | — | 0 | — | — |
| Q2 2021 | 0 | — | 0 | — | — |
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 0 | — | 2 | $6.6m | — |
| Q1 2022 | 0 | — | 4 | $9.1m | — |
| Q2 2022 | 0 | — | 4 | $9.7m | — |
| Q3 2022 | 0 | — | 2 | $157.0k | — |
| Q4 2022 | 0 | — | 0 | — | — |
None reported in Q4 2022.
Holders, Q4 2022
| Manager | Shares | Change |
|---|---|---|
| BlackRock Inc. 0.01% of their portfolio | 3.6m $368.6m | Added +1.4m |
| FMR LLC 0.04% of their portfolio | 3.6m $368.6m | Added +25.8k |
| VANGUARD GROUP INC 0.01% of their portfolio | 3.5m $354.4m | Added +113.6k |
| VICTORY CAPITAL MANAGEMENT INC 0.38% of their portfolio | 3.2m $332.2m | Added +221.0k |
| Soroban Capital Partners LP 2.49% of their portfolio | 2.0m $207.3m | Unchanged |
| Orbis Allan Gray Ltd 1.59% of their portfolio | 2.0m $200.6m | New |
| DIMENSIONAL FUND ADVISORS LP 0.06% of their portfolio | 1.7m $175.2m | Reduced -429.5k |
| STATE STREET CORP 0.01% of their portfolio | 1.1m $115.4m | Added +379.3k |
| Pacer Advisors, Inc. 0.53% of their portfolio | 1.0m $103.8m | Added +342.2k |
| FIRST TRUST ADVISORS LP 0.12% of their portfolio | 960.7k $98.5m | Added +138.9k |
| GOLDMAN SACHS GROUP INC 0.02% of their portfolio | 837.4k $85.9m | Added +35.7k |
| Nuveen Asset Management, LLC 0.03% of their portfolio | 629.0k $64.5m | Added +5.8k |
| AQR CAPITAL MANAGEMENT LLC 0.13% of their portfolio | 559.3k $57.1m | Reduced -102.0k |
| Mirae Asset Global Investments Co., Ltd. 0.14% of their portfolio | 520.1k $53.3m | Reduced -16.6k |
| BANK OF AMERICA CORP /DE/ 0.01% of their portfolio | 498.4k $51.1m | Reduced -468.8k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 451.0k $46.2m | Added +14.6k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 433.3k $44.4m | Added +168.0k |
| Allspring Global Investments Holdings, LLC 0.06% of their portfolio | 365.9k $37.5m | Reduced -61.9k |
| CITADEL ADVISORS LLC 0.04% of their portfolio | 355.1k $36.4m | Added +324.5k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 337.9k $34.7m | Added +3.3k |
| MORGAN STANLEY 0.00% of their portfolio | 320.0k $32.8m | Reduced -276.2k |
| NORGES BANK 0.01% of their portfolio | 309.3k $31.7m | Reduced -7.4k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 307.5k $31.5m | Added +98.5k |
| Invesco Ltd. 0.01% of their portfolio | 263.9k $27.1m | Added +161.7k |
| FEDERATED HERMES, INC. 0.07% of their portfolio | 256.5k $26.3m | Reduced -297.5k |
| Grantham, Mayo, Van Otterloo & Co. LLC 0.13% of their portfolio | 243.8k $25.0m | Added +119.1k |
| ROBOTTI ROBERT 4.69% of their portfolio | 229.3k $23.5m | Reduced -699 |
| Legal & General Group Plc 0.01% of their portfolio | 228.7k $23.5m | Added +23.5k |
| JANUS HENDERSON GROUP PLC 0.02% of their portfolio | 227.6k $23.3m | Reduced -371.7k |
| Swiss National Bank 0.01% of their portfolio | 155.7k $16.0m | Reduced -10.8k |
| STOREBRAND ASSET MANAGEMENT AS 0.09% of their portfolio | 153.0k $15.7m | Added +36.0k |
| Point72 Asset Management, L.P. 0.06% of their portfolio | 152.7k $15.7m | New |
| Appian Way Asset Management LP 5.73% of their portfolio | 148.7k $15.2m | New |
| GUGGENHEIM CAPITAL LLC 0.13% of their portfolio | 147.4k $15.1m | Added +9.3k |
| SCOUT INVESTMENTS, INC. 0.30% of their portfolio | 144.9k $14.9m | Reduced -12.3k |
| Erste Asset Management GmbH 0.31% of their portfolio | 144.0k $14.8m | Added +21.3k |
| Verition Fund Management LLC 0.28% of their portfolio | 140.3k $14.4m | Reduced -335.3k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 134.9k $13.8m | Added +131.3k |
| Man Group plc 0.05% of their portfolio | 130.7k $13.4m | Reduced -9.4k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 130.6k $13.4m | Added +38.8k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 127.3k $13.0m | Reduced -52.8k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 126.0k $12.9m | Added +6.7k |
| VIRGINIA RETIREMENT SYSTEMS ET Al 0.13% of their portfolio | 122.3k $12.5m | Reduced -50.8k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio | 121.5k $12.5m | Added +60.4k |
| Korea Investment CORP 0.04% of their portfolio | 121.3k $12.4m | Added +106.2k |
| Balyasny Asset Management L.P. 0.04% of their portfolio | 117.5k $12.0m | Added +29.9k |
| FORT PITT CAPITAL GROUP, LLC 0.47% of their portfolio | 111.4k $11.4m | Reduced -19.6k |
| Sumitomo Mitsui Trust Group, Inc. 0.01% of their portfolio | 109.9k $11.3m | Reduced -735 |
| SPROTT INC. 0.96% of their portfolio | 105.0k $10.8m | Unchanged |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 102.6k $10.5m | Added +64.3k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.17% of their portfolio | 94.5k $9.7m | Reduced -21.6k |
| LUMINUS MANAGEMENT LLC 2.64% of their portfolio | 90.5k $9.3m | New |
| Vident Investment Advisory, LLC 0.32% of their portfolio | 81.6k $8.4m | Added +14.2k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 81.0k $8.3m | Added +33.9k |
| CREDIT SUISSE AG/ 0.01% of their portfolio | 79.3k $8.1m | Reduced -56.4k |
| Yaupon Capital Management LP 1.41% of their portfolio | 76.6k $7.9m | Added +52.0k |
| WINMILL & CO. INC 2.61% of their portfolio | 70.0k $7.2m | Unchanged |
| WEDGE CAPITAL MANAGEMENT L L P/NC 0.11% of their portfolio | 66.0k $6.8m | Reduced -2.3k |
| CONTRAVISORY INVESTMENT MANAGEMENT, INC. 1.87% of their portfolio | 65.8k $6.7m | Added +776 |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 61.0k $6.3m | Added +8.4k |
| Ensign Peak Advisors, Inc 0.01% of their portfolio | 60.7k $6.2m | Added +9.8k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 58.9k $6.0m | Reduced -4.0k |
| AMERICAN INTERNATIONAL GROUP, INC. 0.04% of their portfolio | 53.6k $5.5m | Added +53.3k |
| Amundi 0.00% of their portfolio | 53.3k $6.0m | Reduced -100.5k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 52.3k $5.4m | Added +4.2k |
| STRS OHIO 0.02% of their portfolio | 50.9k $5.2m | Added +958 |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 46.3k $4.8m | Reduced -1.6k |
| ACADIAN ASSET MANAGEMENT LLC 0.02% of their portfolio | 45.9k $4.7m | Reduced -375.6k |
| Brookfield Corp /ON/ 0.02% of their portfolio | 45.7k $4.7m | Not comparable |
| Retirement Systems of Alabama 0.02% of their portfolio | 45.4k $4.7m | New |
| Squarepoint Ops LLC 0.03% of their portfolio | 41.1k $4.2m | Reduced -35.9k |
| Empowered Funds, LLC 0.28% of their portfolio | 41.1k $4.2m | Reduced -2.1k |
| Faithward Advisors, LLC 0.87% of their portfolio | 39.1k $4.0m | Reduced -2.6k |
| PANAGORA ASSET MANAGEMENT INC 0.03% of their portfolio | 38.5k $3.9m | Reduced -98.8k |
| State of Tennessee, Department of Treasury 0.02% of their portfolio | 37.3k $3.8m | Unchanged |
| Smith, Graham & Co., Investment Advisors, LP 0.46% of their portfolio | 36.9k $3.8m | Reduced -765 |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.01% of their portfolio | 36.7k $3.8m | Added +940 |
| BARCLAYS PLC 0.00% of their portfolio | 36.4k $3.7m | First filing |
| NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio | 36.3k $3.7m | Reduced -812 |
| Alyeska Investment Group, L.P. 0.04% of their portfolio | 35.4k $3.6m | New |
| AVIVA PLC 0.02% of their portfolio | 35.0k $3.6m | Added +30.4k |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC 0.06% of their portfolio | 35.0k $3.6m | New |
| CLARK ESTATES INC/NY 0.74% of their portfolio | 34.6k $3.5m | Unchanged |
| Quantinno Capital Management LP 0.26% of their portfolio | 33.7k $3.5m | Added +14.6k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 32.4k $3.3m | Reduced -86.9k |
| PRUDENTIAL FINANCIAL INC 0.01% of their portfolio | 31.9k $3.3m | Reduced -68.9k |
| HUSSMAN STRATEGIC ADVISORS, INC. 0.52% of their portfolio | 31.0k $3.2m | Unchanged |
| CANADA LIFE ASSURANCE Co 0.01% of their portfolio | 29.4k $3.0m | Added +19.7k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 29.1k $3.0m | Added +26.6k |
| Swedbank AB 0.01% of their portfolio | 29.0k $3.0m | Unchanged |
| MERCER GLOBAL ADVISORS INC /ADV 0.01% of their portfolio | 28.9k $3.0m | Added +3.8k |
| State of Alaska, Department of Revenue 0.04% of their portfolio | 28.7k $2.9m | Added +6.0k |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.04% of their portfolio | 28.3k $2.9m | New |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 27.0k $2.8m | Reduced -337 |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 26.7k $2.7m | Reduced -968 |
| LPL Financial LLC 0.00% of their portfolio | 26.3k $2.7m | Added +134 |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 25.8k $2.6m | Reduced -17.7k |
| AMALGAMATED BANK 0.02% of their portfolio | 25.7k $2.6m | Added +21.9k |
| CITIGROUP INC 0.00% of their portfolio | 23.7k $2.4m | Reduced -35.3k |
| TEXAS PERMANENT SCHOOL FUND CORP 0.04% of their portfolio | 23.1k $2.4m | New |